Filter cartridge assembly and water treatment apparatus

Abstract

The application relates to the technical field of water treatment equipment, and relates to a filter element assembly and water treatment equipment. The filter element assembly comprises a filter piece, a filter element cylinder and a filter element cover; the filter element cylinder is internally provided with a containing space for containing the filter piece; the filter element cover comprises a cover body and a connecting pipe part, the cover body is connected to the filter element cylinder to cover the containing space, the connecting pipe part is connected to the cover body, the connecting pipe part is communicated with the containing space and is used for being connected with an external pipeline; wherein the extension direction of the connecting pipe part and the axial direction of the filter element cylinder are arranged at an included angle. The filter element assembly of the embodiment is arranged at an included angle between the connecting pipe part and the axial direction of the filter element cylinder, so that lateral connection of the filter element assembly and the external pipeline is realized.

Description

Technical Field

[0001] This application relates to the field of water treatment equipment technology, and in particular to a filter element assembly and water treatment equipment. Background Technology

[0002] As a key component in water treatment equipment, water purifier filter cartridges are mainly used to filter impurities and pollutants from water, ensuring the safety and stability of the effluent quality. In existing technologies, the installation direction of water purifier filter cartridges is usually aligned with the axis of the filter cartridge body. While this design is simple in structure and easy to manufacture, it has certain limitations in actual installation, especially in applications with limited space or complex equipment layouts. The straight connection structure of the water purifier filter cartridge cannot flexibly adapt to the pipeline routing, leading to installation obstruction or unreasonable pipeline arrangement.

[0003] Furthermore, because the connecting pipe and the filter cartridge body are axially aligned, water purification filter cartridges can often only be connected to external pipelines along the axial direction, limiting the diversity and compactness of the overall equipment layout. In certain specific situations, such as when the internal space of the water treatment equipment is limited or when lateral piping is required, existing water purification filter cartridges cannot achieve reasonable pipeline connections, affecting the space utilization and ease of installation of the equipment. Utility Model Content

[0004] In view of this, this application provides a filter cartridge assembly and water treatment equipment to solve the problem that the installation direction of the water purification filter cartridge is aligned with the axial direction in the prior art, which leads to limited space utilization and ease of installation.

[0005] The first aspect of this application provides a filter element assembly, comprising:

[0006] Filter components;

[0007] The filter cartridge body has an internal space for accommodating the filter element; and

[0008] A filter cartridge cover includes a cover body and a connecting pipe. The cover body is connected to the filter cartridge body to seal the receiving space. The connecting pipe is connected to the cover body and communicates with the receiving space for connection to an external pipeline. The extending direction of the connecting pipe is set at an angle to the axial direction of the filter cartridge body.

[0009] In one possible implementation, the extending direction of the connecting pipe is perpendicular to the axial direction of the filter cartridge body;

[0010] And / or, the filter element cover is provided with a mounting groove, the mounting groove extending radially along the filter element cover and at least partially penetrating the outer peripheral wall of the filter element cover, the mounting groove being used to engage with the clamp assembly of the water treatment equipment.

[0011] In one possible implementation, the filter assembly further includes a seal connected to the connecting pipe and used for a sealed connection with an external pipeline.

[0012] In one possible implementation, the outer peripheral wall of the connecting pipe is provided with a sealing groove, and the sealing element is at least partially accommodated within the sealing groove.

[0013] In one possible implementation, there are multiple sealing grooves, which are spaced apart axially along the connecting pipe portion.

[0014] In one possible implementation, there are multiple connecting pipe sections, and the multiple connecting pipe sections are arranged in parallel.

[0015] In one possible implementation, the spacing between two adjacent connecting pipe sections is 11-19 mm.

[0016] A second aspect of this application provides a water treatment device, comprising:

[0017] Connection device for connection to waterway; and

[0018] As described in any of the above-mentioned filter element assemblies, the connecting tube portion of the filter element assembly is detachably connected to the connecting device.

[0019] In one possible implementation, the connecting device includes a connecting seat and a clamp assembly. The connecting seat is for connecting to a water circuit, and the connecting pipe is detachably connected to the connecting seat. The clamp assembly is movably connected to the connecting seat and is used to fix or release the filter element assembly.

[0020] In one possible implementation, when the clamp assembly secures the filter element assembly, the clamp assembly at least partially abuts against the side of the connecting pipe portion away from the connecting seat.

[0021] Implementing the embodiments of this application has the following beneficial effects:

[0022] In this embodiment, the filter cartridge assembly achieves a side connection between the filter cartridge assembly and the external pipeline by setting the connecting pipe at an angle to the axial direction of the filter cartridge body. Compared to the existing design where the installation direction of water purification filter cartridges is consistent with the axial direction, this structure effectively solves the problems of unreasonable pipeline layout and installation obstruction caused by existing water purification filter cartridges when space is limited or the equipment layout is complex.

[0023] In the filter element assembly of this embodiment, the inclined setting of the connecting pipe allows the filter element assembly to flexibly adapt to different directions of pipeline routing, reducing the space occupied during installation and improving the utilization rate of the internal space of the equipment. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A perspective view of the water treatment equipment in an embodiment of this utility model is shown;

[0026] Figure 2 A side view of the filter element assembly in an embodiment of the present invention is shown;

[0027] Figure 3 A perspective view of the filter element assembly in an embodiment of the present invention is shown;

[0028] Figure 4 A perspective view of the connecting device in an embodiment of the present invention is shown;

[0029] Figure 5 A perspective view of the filter cover in another embodiment of the present invention is shown.

[0030] Figure label:

[0031] 10. Water treatment equipment;

[0032] 100. Filter element assembly; 110. Filter element cylinder; 120. Filter element cover; 121. Cover body; 122. Connecting pipe section; 1221. Sealing groove;

[0033] 200. Connecting device; 210. Connecting seat; 211. Seat body; 212. Piping section; 213. Hinge seat; 220. Clamp assembly; 221. Locking element; 222. Hinge element; 223. Reset element. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] As a key component in water treatment equipment, water purifier filter cartridges are mainly used to filter impurities and pollutants from water, ensuring the safety and stability of the effluent quality. In existing technologies, the installation direction of water purifier filter cartridges is usually aligned with the axis of the filter cartridge body. While this design is simple in structure and easy to manufacture, it has certain limitations in actual installation, especially in applications with limited space or complex equipment layouts. The straight connection structure of the water purifier filter cartridge cannot flexibly adapt to the pipeline routing, leading to installation obstruction or unreasonable pipeline arrangement.

[0036] Furthermore, because the connecting pipe and the filter cartridge body are axially aligned, water purification filter cartridges can often only be connected to external pipelines along the axial direction, limiting the diversity and compactness of the overall equipment layout. In certain specific situations, such as when the internal space of the water treatment equipment is limited or when lateral piping is required, existing water purification filter cartridges cannot achieve reasonable pipeline connections, affecting the space utilization and ease of installation of the equipment.

[0037] Based on this, see Figures 1 to 5 As shown, this utility model embodiment provides a filter element assembly 100, which includes a filter element, a filter element cylinder 110, and a filter element cover 120. The filter element cylinder 110 has an internal receiving space for accommodating the filter element. The filter element cover 120 includes a cover body 121 and a connecting pipe portion 122. The cover body 121 is connected to the filter element cylinder 110 to cover the receiving space, and the connecting pipe portion 122 is connected to the cover body 121, and the connecting pipe portion 122 communicates with the receiving space and is used to connect to an external pipeline. The extending direction of the connecting pipe portion 122 is set at an angle to the axial direction of the filter element cylinder 110.

[0038] In this embodiment, the filter cartridge assembly 100 achieves a side connection with the external pipeline by setting the connecting pipe portion 122 at an angle to the axial direction of the filter cartridge body 110. Compared with the prior art design where the installation direction of the water purification filter cartridge is consistent with the axial direction, this structure effectively solves the problem of unreasonable pipeline layout and installation obstruction when the existing water purification filter cartridge is in a space-constrained or complex equipment layout.

[0039] In the filter element assembly 100 of this embodiment, the inclined arrangement of the connecting pipe 122 allows the filter element assembly 100 to flexibly adapt to different directions of pipeline routing, reducing the space occupied during installation and improving the utilization rate of the internal space of the equipment.

[0040] Specifically, filter elements can be selected from various filtration materials such as activated carbon, reverse osmosis membranes (RO membranes), ultrafiltration membranes, nanofiltration membranes, or ceramic filter cartridges. Activated carbon, due to its excellent adsorption properties, can effectively remove odors, residual chlorine, organic matter, and some heavy metal ions from water, making it suitable for improving water taste and removing harmful substances. Reverse osmosis membranes (RO membranes), as micron- or even nanometer-scale filtration elements, can retain most dissolved solids, bacteria, viruses, and other tiny impurities, making them suitable for high-purity water preparation. Ultrafiltration and nanofiltration membranes strike a balance between filtration precision and flow rate, making them suitable for mid- to high-end water purification equipment. Ceramic filter cartridges, with their high mechanical strength, high temperature resistance, and corrosion resistance, are suitable for filtration needs under special operating conditions.

[0041] In addition, the outer diameter of the filter cartridge body 110 is 50-130mm. Specifically, the outer diameter of the filter cartridge body 110 can be 50mm, 65mm, 80mm, 95mm, 110mm, or 130mm, depending on the actual filtration requirements and equipment installation space. No single limitation is specified here. When the outer diameter of the filter cartridge body 110 is less than 50mm, the accommodating space is relatively small, which may result in insufficient filling of the filter elements, affecting the filtration effect and service life. When the outer diameter of the filter cartridge body 110 is greater than 130mm, the overall volume of the filter assembly 100 increases, which may increase the equipment installation space requirements and material costs.

[0042] Filter cartridge bodies 110 with different outer diameters are suitable for different application scenarios. Filter cartridge bodies 110 with an outer diameter of 50-70mm are suitable for small household water purification equipment, featuring a compact structure and convenient installation; filter cartridge bodies 110 with an outer diameter of 70-100mm are suitable for medium-sized commercial water purification equipment, achieving a balance between filtration effect and equipment size; filter cartridge bodies 110 with an outer diameter of 100-130mm are suitable for large industrial water purification equipment or occasions requiring long-term continuous operation, accommodating more filter elements and extending the replacement cycle.

[0043] Furthermore, the angle α between the extending direction of the connecting pipe 122 and the axial direction of the filter element cylinder 110 satisfies the range of 80° ≤ α ≤ 100°. Specifically, Figure 2 The X direction shown is the extension direction of the connecting pipe 122, and the Y direction is the axial direction of the filter cartridge 110. Designing the included angle α as an obtuse angle allows the connecting pipe 122 to be arranged laterally or nearly in the opposite direction relative to the filter cartridge 110.

[0044] The advantage of an obtuse angle setting lies in its ability to better adapt to complex internal spatial layouts, making it particularly suitable for situations where filter element installation space is limited or where piping needs to be routed around. Compared to an acute angle where the connecting pipe 122 is closer to the filter element cylinder axis, an obtuse angle setting causes the connecting pipe 122 to deviate significantly outward, facilitating flexible pipe routing and arrangement, reducing pipe bending radii, and improving installation convenience and pipe stability.

[0045] It should be noted that the included angle α can be 80°, 90°, 100°, etc., and the specific angle is determined according to the actual installation environment and pipeline routing, and is not limited to one. When the included angle is close to 90°, the connecting pipe 122 is relatively perpendicular to the filter element cylinder 110, which is suitable for applications where the pipeline and the filter element cylinder are connected at right angles; when the included angle is close to 100°, the connecting pipe 122 and the filter element cylinder 110 are basically opposite in axis, which is beneficial for the reverse arrangement of pipelines in the filter element assembly.

[0046] When the included angle α is not within the range of 80° to 100°, for example, less than 80°, the connecting pipe 122 is relatively close to the filter element cylinder 110 in the axial direction, which may result in limited space for pipeline layout, which is not conducive to the installation of the filter element assembly 100 in a narrow space and the pipeline lead-out, thus limiting the flexibility of the overall layout of the equipment.

[0047] In a preferred embodiment, the extending direction of the connecting pipe 122 is perpendicular to the axial direction of the filter cartridge body 110, i.e., the included angle between them is 90°. Specifically, Figure 2 The X direction is the extension direction of the connecting pipe 122, and the Y direction is the axial direction of the filter element cylinder 110. The two are arranged orthogonally.

[0048] This vertically arranged design allows the filter element assembly 100 to be disassembled and installed along the X-direction, simplifying the replacement and maintenance process. Compared to the traditional filter element assembly which can only be disassembled and installed along the axial direction (Y-direction), lateral disassembly and installation not only improves the convenience of disassembly and installation but also effectively optimizes the spatial layout of the water treatment equipment 10 in the Y-direction, reducing the axial length requirement of the equipment and thus contributing to the compact design of the overall equipment.

[0049] Furthermore, the side-mounted structure of the filter element assembly 100 ensures a more stable connection between the filter element assembly 100 and the water circuit components under gravity, preventing loosening or separation due to gravity. This structure enhances the operational stability and reliability of the water treatment equipment 10, reducing the risk of leakage or equipment failure caused by loose filter element assemblies.

[0050] In summary, the technical solution of axially perpendicularly arranging the connecting pipe 122 and the filter cartridge body 110 not only facilitates the disassembly and assembly of the filter cartridge assembly 100 and optimizes the equipment space layout, but also enhances the overall structural stability and operational safety of the equipment. It is suitable for water treatment equipment applications where space is limited and high ease of maintenance is required.

[0051] Furthermore, the filter element assembly 100 also includes a seal (not shown in the figure), which is connected to the connecting pipe section 122 to achieve a sealed connection between the connecting pipe section 122 and the external pipeline. This seal can be in various forms, such as a rubber sealing ring, O-ring, gasket, or elastic sealing ring. Specific materials can be selected from water-resistant, corrosion-resistant, and highly elastic synthetic rubber materials, such as fluororubber, silicone, or nitrile rubber.

[0052] The sealing element effectively prevents water leakage at the interface between the connecting pipe 122 and the external pipeline, ensuring the sealing performance of the filter element assembly 100 and the stability of the water treatment process. The elastic compression of the sealing element compensates for gaps caused by manufacturing tolerances or installation errors between the connecting pipe 122 and the pipeline interface, reducing the risk of water leakage at the interface.

[0053] Furthermore, the rational design of the seals enhances the ease of disassembly and assembly of the filter element assembly 100, allowing users to quickly disassemble and reinstall the filter element during maintenance or replacement without requiring additional complex sealing treatments. In different installation environments, the size, shape, and material of the seals can be optimized according to actual usage conditions to accommodate connection requirements for different pipe diameters and pressure ratings.

[0054] In one embodiment, a sealing groove 1221 is formed on the outer peripheral wall of the connecting pipe portion 122, and the sealing element is at least partially accommodated in the sealing groove 1221. The sealing groove 1221 enables the installation structure of the sealing element and the connecting pipe portion 122 to be more compact, effectively saving space at the connection point, and preventing the sealing element from being mechanically damaged or misaligned due to exposure, thereby improving the stability and durability of the overall structure.

[0055] Furthermore, the sealing groove 1221 guides and fixes the seal by defining its installation position, preventing displacement or detachment during assembly and ensuring a tight seal between the seal and the connecting pipe 122. This positioning function helps achieve accurate installation of the seal, reduces assembly errors, and improves assembly efficiency.

[0056] The shape and size of the sealing groove 1221 can be designed according to the specific type of the selected seal (such as O-ring, rubber seal ring, etc.) to ensure that the seal can be firmly embedded in the groove, and that the seal can be fully deformed and form an effective sealing surface when the connecting pipe 122 is pressed with the external pipeline interface.

[0057] Through the above structural design, when the connecting pipe 122 of the filter element assembly 100 is connected to the external pipeline, the sealing performance is enhanced, the installation of the sealing element is simpler and more reliable, and the safe operation and service life of the water treatment equipment 10 are further guaranteed.

[0058] Furthermore, there are multiple sealing grooves 1221, which are spaced apart along the axial direction of the connecting pipe portion 122. By providing multiple sealing grooves 1221, multiple seals can be installed in each sealing groove 1221 respectively or selectively to meet different design requirements and sealing level requirements, which is not the only limitation.

[0059] The cooperation of multiple sealing grooves 1221 with the sealing element can form a multi-layer sealing structure at the interface between the connecting pipe section 122 and the external pipeline, significantly enhancing sealing reliability and reducing the risk of leakage due to the failure of a single seal. Especially in water treatment systems with high pressure or significant vibration, the multi-layer sealing structure can effectively resist the impact of pressure fluctuations and mechanical vibrations on the sealing surface, extending the service life of the filter element assembly 100.

[0060] Furthermore, the design of the multiple sealing grooves 1221 can be flexibly adjusted according to the specific shape of the installation space and pipeline interface. The seal can be installed in all sealing grooves 1221 or only in some sealing grooves 1221, which facilitates customized design for different sealing requirements. The spacing and depth of the multiple sealing grooves 1221 can also be optimized and matched according to the elasticity and deformation characteristics of the sealing material to ensure that the seal forms a good sealing surface under compression.

[0061] In another embodiment, the filter cover 120 is provided with a mounting groove 1211, which extends radially along the filter cover 120 and at least partially penetrates the outer peripheral wall of the filter cover 120. The mounting groove 1211 is used to engage with the clamp assembly 220 of the water treatment equipment 10.

[0062] The mounting slot 1211 allows the clamp assembly 220 to be accommodated within it during connection, ensuring a tight fit between the clamp assembly 220 and the filter element cover 120. This structural design makes the connection between the filter element assembly 100 and the external clamp assembly 220 more compact, preventing the clamp assembly 220 from protruding excessively from the filter element assembly 100, reducing the overall size of the device, and improving space utilization.

[0063] After the clamp assembly 220 is housed inside the mounting groove 1211, it applies a clamping force to the filter element assembly 100 in the radial direction through the snap-fit ​​structure, thereby achieving radial fixation of the filter element assembly 100. The cooperation between the mounting groove 1211 and the clamp assembly 220 can prevent radial displacement and rotation of the clamp assembly 220, improving the stability and reliability of the connection.

[0064] Furthermore, the presence of the mounting slot 1211 simplifies the installation and removal of the clamp assembly 220. When replacing the filter element, the user only needs to loosen the clamp assembly 220 to release the filter element assembly 100 from the mounting slot 1211, without the need for complex tools or interference from exposed clamps, thus reducing maintenance difficulty and time costs.

[0065] Specifically, in this embodiment, the distance L1 between the end of the connecting tube 122 away from the cover body 121 and the limiting surface is limited to 15mm≤L1≤90mm.

[0066] The optional endpoints and several intermediate values ​​of L1 can be, for example, 15mm, 30mm, 45mm, 60mm, 90mm. Specifically, any of the above values ​​or other values ​​between the above values ​​can be taken. The specific values ​​are determined according to the installation space of the equipment, the insertion depth of the filter element assembly 100, the structural dimensions of the locking member 221, and the arrangement of the sealing member. There is no unique limitation here.

[0067] Disadvantages and adverse situations that may occur when L1 exceeds the limit: When L1 < 15mm, the distance between the end of the connecting tube 122 and the limiting surface is too short, which may prevent the connecting tube 122 from forming a sufficient insertion depth, resulting in decreased sealing performance and leakage. An excessively short L1 may also cause interference between the limiting surface and the pipe section 212 or the clamp assembly 220, affecting the smooth installation or removal of the filter element assembly 100. When L1 > 90mm, the exposed length of the connecting tube 122 and the length of the lever arm increase, amplifying the bending moment effect of external forces on the connection, which may lead to fatigue, deformation, or loosening at the connection between the connecting tube 122 and the cover body 121 under long-term vibration; simultaneously, an excessively large L1 will increase the overall size of the device and material consumption, increasing manufacturing costs, and may introduce a large dead cavity in the connection, affecting fluid dynamics performance (e.g., retention, incomplete flushing). Therefore, measures such as structural reinforcement, material selection, or additional measures to limit external forces should be taken when exceeding this range; otherwise, connection reliability will be reduced or costs will increase.

[0068] Specifically, there are multiple connecting pipe sections 122, and the multiple connecting pipe sections 122 are arranged in parallel.

[0069] In this embodiment, the multiple connecting pipes 122 can be used for different water circuit functions, such as connecting the inlet and outlet, to meet the multi-channel fluid transport requirements in the water treatment process.

[0070] For example, when the filter element in the filter cartridge assembly 100 is a single-stage filter material such as activated carbon, the number of connecting pipes 122 can be set to two, one for introducing raw water and the other for outputting filtered purified water. In this case, one connecting pipe 122 serves as the inlet pipe interface, responsible for introducing the water to be treated into the filter element housing space inside the filter cartridge body 110, and the other connecting pipe 122 serves as the outlet pipe interface, used to discharge the water filtered by activated carbon, realizing a one-way purification process. This structure is simple and practical, easy to install and maintain, and ensures the stability of the filtered water quality.

[0071] When the filter element in the filter cartridge assembly 100 is a reverse osmosis membrane (RO membrane), the water treatment process typically involves multiple water inputs and outputs. Therefore, the number of connecting pipe sections 122 can be set to three. Specifically, the three connecting pipe sections are used for water inlet, wastewater discharge, and filtered water output, respectively. The water inlet connecting pipe section 122 is responsible for introducing raw water into the RO membrane filtration zone. The pure water generated after filtration is discharged through the output connecting pipe section 122, while the concentrated water and impurities that are not filtered out are discharged through the wastewater connecting pipe section 122. This multi-channel design conforms to the working principle of the RO membrane, effectively separating pure water and wastewater, improving filtration efficiency and extending the service life of the membrane module.

[0072] The parallel arrangement of multiple connecting pipe sections 122 not only achieves reasonable distribution and discharge of water flow, but also enables the filter element assembly 100 to adapt to different process flows and equipment requirements, enhancing the system's flexibility and scalability. The specific configuration of the number and function of the connecting pipe sections 122 can be adjusted according to the design requirements of the actual water treatment equipment, and is not limited to the above example, to meet the application needs under different water quality, water quantity, and process conditions.

[0073] Furthermore, by increasing the number of connecting pipe sections 122 and connecting them to the connecting device 200 respectively, the installation stability of the filter element assembly 100 can be further improved. Specifically, the multi-point fixing structure of multiple connecting pipe sections 122 and connecting device 200 can distribute the load, reduce the bearing pressure of a single connection point, and reduce the risk of loosening or displacement caused by vibration, impact, or pipe compression.

[0074] Furthermore, multiple connections facilitate the stable positioning of the filter element assembly 100 within the equipment, preventing it from shaking due to gravity or water flow impact. This ensures the continuous and effective sealing connection between the filter element assembly 100 and the external pipeline, reducing the risk of leakage. Multiple connecting pipes 122 respectively cooperate with the connecting device 200, making the installation of the filter element assembly more secure and facilitating a rational layout of multiple pipelines, thus improving the overall compactness and aesthetics of the pipeline system.

[0075] The connection structure between the connecting pipe 122 and the connecting device 200 can be achieved through various methods such as snap-fit, threaded connection, flange connection, or sealing ring tightening. The appropriate connection method can be selected based on the actual installation environment and maintenance requirements. By rationally designing the support and fixing structure of the connecting device 200, the displacement and rotation of the filter element assembly 100 can be effectively limited, improving the reliability of equipment operation.

[0076] Furthermore, in order to ensure the connection strength between the connecting pipe 122 and the cover body 121, the connection position between the connecting pipe 122 and the cover body 121 can be designed with an outer diameter larger than the outer diameter of the pipe opening of the connecting pipe 122. Specifically, the outer diameter of the connecting pipe 122 is D1, D1 = 6.5-14.5mm, and D2 = 7.5-11.5mm.

[0077] In this embodiment, the outer diameter of the connecting pipe 122 can be divided into the basic outer diameter D1 at the pipe opening and the outer diameter D2 after reinforcement or transition at the connection with the cover body 121. To ensure the connection strength between the connecting pipe 122 and the cover body 121, a transition section or reinforcing shoulder with an outer diameter larger than the pipe opening can be provided at the connection, so that the load is better distributed and reinforced at the transition section. The following value examples are given for selection: D1 ranges from 6.5mm to 14.5mm, and 6.5mm, 8.0mm, 10.0mm, 12.0mm, and 14.5mm can be taken as endpoints and intermediate values ​​respectively; D2 ranges from 7.5mm to 11.5mm, and 7.5mm, 8.5mm, 9.5mm, and 11.5mm can be taken as endpoints and intermediate values ​​respectively.

[0078] In specific designs, D2 is usually set to be greater than or equal to D1 (e.g., D2≈D1+1.0mm to +3.5mm) to form a shouldered transition or thickened annular area. The shoulder or reinforcing ring can be integrated with the cover body 121 or formed a reliable connection through mechanical fitting. If D2 is designed to be the same as D1, there is no reinforcement effect; if D2 is too large (much greater than 11.5mm), it will increase the exposed volume, material cost, and may create dead cavities or interference, and may reduce aesthetics and spatial adaptability during insertion; if D1 is less than 6.5mm, the strength of the nozzle and the durability of the interface will decrease, and local damage or fatigue is likely to occur during insertion or when subjected to bending moment.

[0079] In one embodiment, the inner diameter of the infusion channel is 2-8 mm, and the distance between two adjacent connecting tube sections 122 is 11-19 mm.

[0080] In this embodiment, the inner diameter of the infusion channel ranges from 2mm to 8mm, with endpoints and intermediate values ​​of 2mm, 3.5mm, 5mm, 7mm, and 8mm respectively. The inner diameter directly affects the flow capacity and pressure drop: a smaller inner diameter (closer to 2mm) increases the pressure drop per unit length, making it prone to blockage, suitable for low-flow or high-precision micro-volume water supply applications; a larger inner diameter (closer to 8mm) results in a larger flow rate but increases volume and connector size, suitable for larger flow rates or commercial / industrial applications. During design, hydraulic checks should be performed based on the rated flow rate and allowable pressure drop of the water purification equipment, taking into account the requirements for particulate contamination and ease of channel cleaning.

[0081] The distance between the central axes of two adjacent connecting pipe sections 122 can be 11mm-19mm, specifically 11mm, 14mm, 16mm, or 19mm. The axial spacing determines the minimum external dimensions and wall thickness distribution of the cover body 121 when multiple channels are arranged: a smaller spacing (e.g., 11mm) is beneficial for overall miniaturization, but may increase stress concentration in weak wall areas; a larger spacing (e.g., 19mm) is beneficial for strengthening the wall and facilitating the arrangement of reinforcing ribs or mounting cavities between two channels, but will increase the overall size. During design, it is necessary to ensure that the channel spacing does not structurally interfere with the minimum wall thickness of the cover body 121, the position of reinforcing ribs, and the arrangement of the sealing groove.

[0082] Of course, in some embodiments, the outer diameter of the sealing groove 1221 (including the outer edge dimension of the groove opening) can be selected within the range of 4.5mm-12.5mm, specifically 4.5mm, 6.5mm, 9.5mm, and 12.5mm. The size of the sealing groove 1221 must match the cross-section of the selected sealing element (e.g., the diameter of the O-ring cross-section) to ensure that a suitable amount of compression and sealing contact surface can be obtained when it is inserted into the pipeline section 111.

[0083] The present invention also provides a water treatment device 10, which includes a connecting device 200 and a filter element assembly 100 in any of the above embodiments; the connecting device 200 is used to connect to a water circuit, specifically to components such as a water circuit board or a liquid circuit pipe in the water treatment device 10; the connecting pipe portion 122 of the filter element assembly 100 is detachably connected to the connecting device 200.

[0084] Specifically, the connecting pipe 122 in the filter element assembly 100 is angled to the axial direction of the filter element cylinder 110, allowing the extension direction of the connecting pipe 122 to deviate from the traditional axial straight connection method, thereby realizing the lateral arrangement of the filter element assembly 100. This structure can flexibly adapt to various pipeline routes when the internal space of the equipment is limited or the layout is complex, avoiding the bending or congestion of pipelines caused by the axial restriction of the filter element.

[0085] The connecting device 200 serves as an interface component in the water treatment equipment 10, and can be connected to water circuit components such as water circuit boards and liquid circuit pipes. The connecting pipe portion 122 of the filter element assembly 100 is detachably connected to the connecting device 200. This detachable connection method not only facilitates the installation and replacement of the filter element assembly 100, but also ensures the sealing and mechanical stability of the connection position through the stable support of the connecting device 200, thereby improving the overall operational safety of the equipment.

[0086] By designing the connecting pipe 122 at an angle to the axial direction of the filter cartridge body 110, the filter cartridge assembly 100 reduces the dependence of traditional filter cartridge structures on the longitudinal space of the equipment, thus optimizing the space utilization of the water treatment equipment 10. In particular, when the connecting pipe 122 of the filter cartridge assembly 100 is set at an obtuse angle or vertically, the pipeline layout is more reasonable, installation and maintenance are more convenient, and it helps to reduce the overall size of the equipment, improving its compactness and aesthetics.

[0087] In summary, by adopting the combination of the filter element assembly 100 and the connecting device 200, the water treatment equipment 10 achieves side-mounted installation of the filter element assembly and multi-directional pipeline connection, which improves the pipeline layout and equipment space utilization problems caused by the limited installation of traditional filter elements, and enhances the installation flexibility and operational reliability of the equipment.

[0088] In one embodiment, the connecting device 200 includes a connecting seat 210 and a clamp assembly 220, wherein the connecting seat 210 is used for connecting to a water circuit, and the connecting pipe portion 122 is detachably connected to the connecting seat 210. The connecting seat 210, as a transfer component, serves to connect the filter element assembly 100 to the internal piping of the water treatment equipment 10, allowing the filter element assembly 100 to be easily integrated into the entire water system.

[0089] The clamp assembly 220 is movably connected to the connecting seat 210 and is mainly used to fix or release the filter element assembly 100. Specifically, after the filter element assembly 100 is connected to the connecting seat 210 through the connecting pipe 122, the operator can rotate the clamp assembly 220 to lock it onto the filter element cover 120, thus achieving a stable fixation of the filter element assembly 100. The locking structure of the clamp assembly 220 can provide reliable mechanical locking force to prevent the filter element assembly from loosening or falling off under vibration or water flow impact during equipment operation.

[0090] When the filter element assembly 100 needs to be removed for maintenance or replacement, simply rotate the clamp assembly 220 in the reverse direction to release the clamp, and the filter element assembly 100 can be easily released, achieving quick disassembly. This disassembly and assembly process is simple in structure, convenient in operation, requires no complicated tools, and helps improve the maintenance efficiency of the equipment.

[0091] This design, through the combination of the connecting seat 210 and the clamp assembly 220, achieves stable installation and convenient disassembly of the filter element assembly 100, ensuring the sealed connection and mechanical stability between the filter element assembly and the internal pipeline of the equipment, while meeting the convenience requirements of the water treatment equipment 10 during the maintenance cycle, thus improving the practicality of the equipment and the user experience.

[0092] Specifically, when the clamp assembly 220 secures the filter element assembly 100, the clamp assembly 220 at least partially abuts against the side of the connecting pipe portion 122 away from the connecting seat 210. Through this structural arrangement, the clamp assembly 220 not only secures the filter element assembly 100 but also effectively limits the movement of the filter element assembly 100 in the direction of installation and removal of the connecting pipe portion 122 (i.e., the forward or reverse direction of the X direction).

[0093] This limiting function prevents the filter element assembly 100 from shifting or loosening along the axial direction of the connecting pipe 122 due to water flow impact, vibration, or other external forces during daily use, thus ensuring that the connection between the filter element assembly 100 and the connecting device 200 remains stable and sealed. The clamp assembly 220 abuts against the connecting pipe 122, forming a mechanical positive stop, enhancing the robustness of the connection structure and avoiding the risk of interface leakage or structural damage to the filter element assembly due to uneven force or movement.

[0094] Furthermore, this limiting structure design eliminates the need for additional complex locking mechanisms, resulting in a simple structure that is easy to manufacture and assemble, and does not affect the disassembly and maintenance of the filter element assembly 100. When it is necessary to disassemble the filter element assembly 100, simply release the clamp assembly 220 to remove the abutment restriction, and the filter element assembly can be easily removed along the disassembly / removal direction, ensuring ease of disassembly and reassembly.

[0095] In one embodiment, the connector 210 includes a body 211, a conduit section 212, and a hinged seat 213. The body 211 serves as the main structure of the connector 210, providing support and a fixed foundation for the conduit section 212 and the hinged seat 213, ensuring the overall strength and stability of the connector 210.

[0096] The piping section 212 is mounted on the base body 211. One end of it connects to the connecting pipe section 122 of the filter element assembly 100, and the other end connects to water circuit components inside the water treatment equipment 10, such as a water circuit board or liquid circuit pipe. The piping section 212 serves as a conduit for water flow, enabling fluid communication between the filter element assembly 100 and the internal piping of the equipment. The size and shape of the piping section 212 can be designed according to the actual pipe interface standards and equipment layout to ensure good compatibility and sealing.

[0097] A hinge seat 213 is mounted on the seat body 211 to support the rotation of the clamp assembly 220. The hinge seat 213, through a hinge structure or similar movable connection, allows the clamp assembly 220 to rotate around the hinge seat 213, enabling the fixing and releasing operations of the filter element assembly 100. The design of the hinge seat 213 ensures the flexibility of the clamp assembly 220's rotation and the accuracy of its positioning, while also withstanding the mechanical forces generated when the clamp assembly 220 is tightened, ensuring a tight fit between the clamp assembly 220 and the filter element assembly 100.

[0098] This structural design enables the connector 210 to not only complete the connection of the water circuit and the function of fluid transmission, but also, through the cooperation of the hinge 213 and the clamp assembly 220, to achieve the stable installation and convenient disassembly of the filter element assembly 100. The overall structure is reasonable, the functional areas are clearly defined, and it meets the installation requirements of the filter element assembly in the water treatment equipment 10, improving the maintenance efficiency and reliability of the equipment.

[0099] Specifically, the clamp assembly 220 includes a locking member 221, a hinge member 222, and a resetting member 223. The locking member 221 is connected to the hinge member 222, and the hinge member 222 realizes the rotational connection between the clamp assembly 220 and the connecting seat 210, so that the filter element assembly 100 can be fixed or released by rotation.

[0100] The reset element 223 works in conjunction with the locking element 221, and the reset element 223 preferably adopts a torsion spring structure. As the reset element 223, the torsion spring automatically drives the locking element 221 to reset after the external operating force is removed, ensuring that the clamp assembly 220 is in a preset locked or pending-lock state. This design makes the assembly structure of the reset element 223 compact, occupies little space, and facilitates the integration and installation of the overall clamp assembly 220.

[0101] Through the elastic reset function of the reset component 223, the clamp assembly 220 can achieve automatic reset, preventing the filter element assembly 100 from loosening or falling off due to improper human operation or forgetting to lock, thus improving the installation safety and reliability of the filter element assembly 100. At the same time, the torsion spring structure of the reset component 223 can withstand repeated operations, ensuring the long-term performance of the clamp assembly 220.

[0102] In summary, the clamp assembly 220 is equipped with a torsion spring type reset component 223 that works in conjunction with the locking component 221. This achieves the automatic reset function of the clamp while ensuring a compact structure and convenient operation, thus improving the safety and ease of maintenance of the filter element assembly 100 in the water treatment equipment 10.

[0103] Correspondingly, the inner diameter of the pipe section 212 is 7.5-15.4mm, and the spacing between two adjacent pipe sections 212 is 11-19mm.

[0104] The inner diameter of the pipe section 212 should be checked to match the outer diameter D1 of the connecting pipe section 122 to ensure the sealing compression, assembly force and long-term durability during insertion.

[0105] When the spacing between two adjacent pipe sections 212 is limited to 11mm to 19mm, it should match the arrangement of the central axis of the connecting pipe section 122 to ensure that the two connecting pipe sections 122 do not interfere with each other when in place and that the internal wall thickness and reinforcing rib layout of the filter cover 220 meet the strength requirements. Several optional values ​​are given: 11mm, 14mm, 16mm, and 19mm. Correspondingly, when the spacing is 11mm or 14mm, the wall thickness of the cover body 121 between the two channels must be guaranteed to be no less than the manufacturing and strength limits (e.g., selected according to the minimum wall thickness requirement of the material), and reinforcing ribs can be arranged between the two channels. When the spacing is close to 19mm, it is advantageous to set a wider reinforcing structure between the two channels or to accommodate a larger cross-section output / input channel, but it will increase the space occupied by the external connection layout.

[0106] In the description of the embodiments of this application, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0107] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0108] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0109] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0110] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A filter element assembly, characterized in that, include: Filter components; The filter cartridge body has an internal space for accommodating the filter element; as well as A filter cartridge cover includes a cover body and a connecting pipe. The cover body is connected to the filter cartridge body to cover the receiving space. The connecting pipe is connected to the cover body and communicates with the receiving space for connection to an external pipeline. The extending direction of the connecting pipe is perpendicular to the axial direction of the filter cartridge body. The filter element cover is provided with a mounting groove, which extends radially along the filter element cover and at least partially penetrates the outer peripheral wall of the filter element cover. The mounting groove is used to engage with the clamp assembly of the water treatment equipment.

2. The filter element assembly according to claim 1, characterized in that, The filter element assembly also includes a seal, which is connected to the connecting pipe and used for sealing connection with external pipelines.

3. The filter element assembly according to claim 2, characterized in that, The outer peripheral wall of the connecting pipe is provided with a sealing groove, and the sealing element is at least partially housed in the sealing groove.

4. The filter element assembly according to claim 3, characterized in that, The number of sealing grooves is multiple, and the multiple sealing grooves are spaced apart along the axial direction of the connecting pipe.

5. The filter element assembly according to any one of claims 1-4, characterized in that, The number of the connecting pipes is multiple, and the multiple connecting pipes are arranged in parallel.

6. The filter element assembly according to claim 5, characterized in that, The spacing between two adjacent connecting pipe sections is 11-19 mm.

7. A water treatment device, characterized in that, include: Connecting device for connection to waterways; as well as The filter element assembly as described in any one of claims 1-6, wherein the connecting tube portion of the filter element assembly is detachably connected to the connecting device.

8. The water treatment equipment according to claim 7, characterized in that, The connecting device includes a connecting seat and a clamp assembly. The connecting seat is used to connect to the water circuit, and the connecting pipe is detachably connected to the connecting seat. The clamp assembly is movably connected to the connecting seat and is used to fix or release the filter element assembly.

9. The water treatment equipment according to claim 8, characterized in that, When the clamp assembly secures the filter element assembly, the clamp assembly at least partially abuts against the side of the connecting pipe away from the connecting seat.

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